EATING PATTERN IN THE FIRST YEAR FOLLOWING ADJUSTABLE SILICONE GASTRIC BANDING (ASGB) FOR MORBID-OBESITY

OBJECTIVE: To analyse the relationships between eating pattern, vomiti ng frequency, weight loss and the rate of band related complications i n morbidly obese patients undergoing Adjustable Silicone Gastric Bandi ng (ASGB). SUBJECTS: 80 morbidly obese patients (57 females and 23 mal es) consecutively operated by ASGB were evaluated both before and 3, 6 and 12 months after ASGB. Ten patients (12.5%) had binge eating disor der and were analysed separately. MEASUREMENTS: (1) weight loss expres sed as percentage of overweight, (2) total daily energy intake, (3) pe rcentage of energy as lipids, carbohydrates and proteins, (4) percent as liquid, soft or solid foods and (5) vomiting frequency.RESULTS: ASG B induced a highly significant reduction of total daily energy intake and percent as solid foods, without significant changes in macronutrie nt distribution. There was an inverse relationship between vomiting fr equency and the intake of solid foods. Non-binge eaters with more vomi ting ate less solid food and lost more weight than patients without vo miting. The frequency of neostoma stenosis was higher in patients with high vomiting frequency than in patients with no vomiting. Patients w ith binge eating disorder had a significantly higher vomiting frequenc y and a five-fold higher frequency of neostoma stenosis than patients without binge eating disorder. However, the percentage of overweight l ost did not differ between patients with and without binge eating. CON CLUSIONS: Vomiting is a major determinant of global outcome after ASGB . The vomiting frequency in the first months after ASGB was associated with eating pattern, the frequency of neostoma stenosis and possibly the rate of weight loss during the first year of follow-up.